Oxygen Sensor Replacement Estimate for Mercedes-Benz S400

Mercedes-Benz S400 Oxygen Sensor Replacement costs $238 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$180 to $313
Labor: $70 -$80
Parts: $110 -$233
Average Dealer price
$312 to 558
Average Shop price
$220 to 374
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CarServiceYourMechanic PriceShop/Dealer Price
2010 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.47Shop/Dealer Price$243.49 - $351.40
2011 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$316.83Shop/Dealer Price$404.07 - $608.34
2011 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$186.27Shop/Dealer Price$240.80 - $347.09
2010 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$295.00Shop/Dealer Price$376.73 - $564.60
2012 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$188.47Shop/Dealer Price$243.51 - $351.44
2012 Mercedes-Benz S400V6-3.5L HybridService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$321.48Shop/Dealer Price$409.76 - $617.42
Show example Mercedes-Benz S400 Oxygen Sensor Replacement prices
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Parts required for a Mercedes-Benz S400 Oxygen Sensor Replacement

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192 reviews
Rocco
17 years of experience
I rescheduled appointment to a much earlier time with only 1 hour notice, he arrived right on time regardless. Did everything very quickly and told me what he was doing along the way, was a very pleasant experience, found my new mechanic.
1999 MERCEDES-BENZ E55 AMG - OIL CHANGE
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132 reviews
Rodney
31 years of experience
This was my first time using a at home service for my car , after reading the comments from other customers I decided to give it a try , and oh my gosh I was totally shocked by the professionalism that Rodney provided he showed up early which I was fine with cause I am a tickler for being on time and on time he was , so that was a big check mark , professionally dressed with company logo uniform . Not only did he find out the problem with my car but also did a inspection of the entire car , let me know that my tires were low and recommended that as soon as i get it running go and get them inflated and told me what pressure for front and the rear . So yes I was very happy with Rodney and the service he provided and the overall attention of the company putting customers first . Looking forward to seeing Rodney next week for the repairs .
2005 MERCEDES-BENZ ML350 - CHECK ENGINE LIGHT IS ON INSPECTION
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50 reviews
Matthew
6 years of experience
Matthew was very quick in determining the problem and even quicker fixing it. Arrived early and was great to deal with.
2001 MERCEDES-BENZ SLK230 - BRAKE LIGHT SWITCH REPLACEMENT
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26 reviews
James
16 years of experience
Arrived within the expected time, with all the parts and tools. He explained me first the whole process and answer all questions. He has a very calm attitude and easy going. Highly recommended.
2003 MERCEDES-BENZ E500 - SERPENTINE/DRIVE BELT REPLACEMENT
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All about Oxygen Sensor Replacement

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor. Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor Replacement Estimates for Popular Mercedes-Benz Models